Aortic root prosthesis with compliant sinuses
First Claim
1. An aortic root prosthesis for being implanted into a patient during a valve sparing surgery as a replacement for a biological aortic root segment of an ascending aorta, comprising:
- (a) a hollow, annular tube having proximal and distal ends, and an inner and outer wall, said distal end adapted for being attached to the ascending aorta; and
(b) a plurality of sinuses circumferentially connected to the proximal end of said tube, each of said sinuses adapted for being attached to an aortic wall and including;
(i) contouring means for imparting a convex contour to an outer wall of the sinus to thereby create a space between an open leaflet of an aortic valve and the respective sinus to prevent impact between the open leaflet and an inner wall of the sinus; and
(ii) a plurality of Z folds formed in and extending along the vertical axis of the sinus parallel to the longitudinal axis of the tube for allowing the sinus to be stretched laterally.
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Abstract
An aortic root prosthesis for being implanted into a patient during a valve sparing surgery as a replacement for a biological aortic root segment of an ascending aorta is disclosed. The aortic root prosthesis includes a hollow, annular tube having proximal and distal ends, and an inner and outer wall. The distal end is for being attached to the ascending aorta. A plurality of sinuses are circumferentially connected to the proximal end of the tube. Each of the sinuses is adapted for being attached to the aortic wall. Each of the sinuses also includes contouring means for imparting a convex contour to an outer wall of the sinus to thereby create a space between the open leaflet and its respective sinus to prevent impact between the leaflet of the valve and the inner wall of the sinus.
70 Citations
12 Claims
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1. An aortic root prosthesis for being implanted into a patient during a valve sparing surgery as a replacement for a biological aortic root segment of an ascending aorta, comprising:
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(a) a hollow, annular tube having proximal and distal ends, and an inner and outer wall, said distal end adapted for being attached to the ascending aorta; and
(b) a plurality of sinuses circumferentially connected to the proximal end of said tube, each of said sinuses adapted for being attached to an aortic wall and including;
(i) contouring means for imparting a convex contour to an outer wall of the sinus to thereby create a space between an open leaflet of an aortic valve and the respective sinus to prevent impact between the open leaflet and an inner wall of the sinus; and
(ii) a plurality of Z folds formed in and extending along the vertical axis of the sinus parallel to the longitudinal axis of the tube for allowing the sinus to be stretched laterally. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification